Brown "algae" on back of tank
- Thread starter sniper-sam
- Start date
I've always done weekly water changes, about 30% every Sunday morning.
Should I really be doing more than this? Or would it be better to do say 2 x15%?
Should I really be doing more than this? Or would it be better to do say 2 x15%?
If you are indeed have a problem with too much nitrate then that would be the best to remove more of it.
A change in lighting made my brown gunk turn green.
Older fixtures with equally old bulbs put out the kind of light perfect for the brown gunk to flourish.
Went to a DIY T8 fixture, running 6500K daylight bulbs cured my tanks brown out.
Older fixtures with equally old bulbs put out the kind of light perfect for the brown gunk to flourish.
Went to a DIY T8 fixture, running 6500K daylight bulbs cured my tanks brown out.
KaiserSousay;4978233; said:
My LFS reckons it's a lighting issue, a new light unit has be replaced for the front of the tank and the more I think about, the 2 tubes in the back unit are 2 years old now so the intensity or whatever has probably gone in them, and it's the back glass where I'm having the problems. Think I'm gonna replace those 2 tubes as a matter of urgency.
sniper-sam;4978226; said:That's the thing though, my nitrate levels were very low
Then I would say again it must have been cause by the low light. You said you got another light fixture right. Are you still having the brown algae and is it growing faster than you can remove it? Inadequate lighting, excess nitrates, and low levels of oxygen can all cause brown algae. You said the nitrate is fine and the lighting has been fixed what kinda water movement do you have. Do you have an air pump or use a power head?
bigbadfish711;4978253; said:
Some of the lighting has been fixed, I think I still need to replace 2 tubes though.
I have 2 spray bars which are fixed just below the water line so movement is pretty good. I did have an line in until recently, I think I'll replace the 2 tubes to see what happens. They prob need doing anyway, if that doesn't help then maybe get the airline back in.
